chore: remove relay from sdk package (#2040)

* remove full node

* remove relay from sdk

* comment node counter check

* try using logline

* up comment

package.json

@@ -9,10 +9,10 @@
     "packages/message-hash",
     "packages/enr",
     "packages/core",
-    "packages/relay",
     "packages/discovery",
     "packages/message-encryption",
     "packages/sdk",
+    "packages/relay",
     "packages/tests",
     "packages/browser-tests",
     "packages/build-utils",

packages/interfaces/src/waku.ts

@@ -45,10 +45,3 @@ export interface RelayNode extends Waku {
   filter: undefined;
   lightPush: undefined;
 }
-
-export interface FullNode extends Waku {
-  relay: IRelay;
-  store: IStoreSDK;
-  filter: IFilterSDK;
-  lightPush: ILightPushSDK;
-}

packages/relay/package.json

@@ -52,6 +52,7 @@
     "@chainsafe/libp2p-gossipsub": "^13.1.0",
     "@noble/hashes": "^1.3.2",
     "@waku/core": "0.0.31",
+    "@waku/sdk": "0.0.27",
     "@waku/interfaces": "0.0.26",
     "@waku/proto": "0.0.8",
     "@waku/utils": "0.0.19",

packages/relay/src/create.ts

@@ -0,0 +1,44 @@
+import type { RelayNode } from "@waku/interfaces";
+import {
+  createLibp2pAndUpdateOptions,
+  CreateWakuNodeOptions,
+  WakuNode,
+  WakuOptions
+} from "@waku/sdk";
+
+import { RelayCreateOptions, wakuGossipSub, wakuRelay } from "./relay.js";
+
+/**
+ * Create a Waku node that uses Waku Relay to send and receive messages,
+ * enabling some privacy preserving properties.
+ * * @remarks
+ * This function creates a Relay Node using the Waku Relay protocol.
+ * While it is technically possible to use this function in a browser environment,
+ * it is not recommended due to potential performance issues and limited browser capabilities.
+ * If you are developing a browser-based application, consider alternative approaches like creating a Light Node
+ * or use this function with caution.
+ */
+export async function createRelayNode(
+  options: CreateWakuNodeOptions & Partial<RelayCreateOptions>
+): Promise<RelayNode> {
+  options = {
+    ...options,
+    libp2p: {
+      ...options.libp2p,
+      services: {
+        pubsub: wakuGossipSub(options)
+      }
+    }
+  };
+
+  const { libp2p, pubsubTopics } = await createLibp2pAndUpdateOptions(options);
+  const relay = wakuRelay(pubsubTopics || [])(libp2p);
+
+  return new WakuNode(
+    pubsubTopics,
+    options as WakuOptions,
+    libp2p,
+    {},
+    relay
+  ) as RelayNode;
+}